Beater



Feb. 1a, 1w. E. H. LE|HTY` 2231,926

BEATER Filtd Jan. 15. 1940 t vINvlaNvToR THLf/GHTY BY ATTORNEY Patented Feb. 18, 1941 lMTENT oFFlcE BEATER Elroy Homer Leighty, Seattle, Application `January 15, 1910, serial No; 313,933 1 claim. (01259-131) This invention relates to improvements,4 in beaters and has reference more particularly to beaters for domestic use, such as those employed,

for the beating of eggs, cream, dressings, andthe like; it being the principal object of this invention to provide a beater for the above purpose that does not splash, or throw the material worked on from the beating container during itsuse.

It is also an object of this invention to provide O a beater, adapted for either hand or electric motor operation, that may easily be kept in aclean and sanitary condition which is strong and 4durable in use and is very effective in its intended use. V 1

More specifically stated, the present invention resides in the provision of a beater that is an improvement upon the device of United States Letters Patent No. 2,121,918, issued to me on June 28, 1938, and wherein two independent sets of beater elements rotate in opposite directions, and effect a thorough aerating of the substance being acted on, with a downward and inward propulsion thereof, thereby eliminating splashing and expedites the operation.

Other objects of the invention reside in the details of construction of the beater elements, in their relationship and mode of operation, as will hereinafter be fully described.

In accomplishing these and other objects of the invention, I have provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawing, where- Fig. 1 is a side view of a hand operated beater r embodying the present invention.

Fig. 2 is a horizontal section, taken on the line 2 2 in Fig. 1.

Fig. 3 is a cross section taken on line 3-3 in Fig. 1.

Fig. 4 is a sectional detail on line 4-4 in Fig. 2.

Fig. 5 is a cross section on line 5-5 in Fig. 2.

Referring more in detail to the drawing- In its present preferred form of construction, as designed for hand operation, the beater comprises a main, or central beater shaft I, revolubly contained at its upper end portion in spaced, coaxially alinedbearing sleeves 2 and 3, which are rigidly joined by a connecting rod 4. This rod may be welded or otherwise suitably fixed lengthwise to the said bearing sleeves 2' and 3, and, as herein sho-wn, extends upwardly beyond the bearing sleeve 2, and is then turned downwardly and laterally as at 4a and mounts a handle 5 thereon to facilitate holding the device properly for hand use.

Fixed to the side o-f the lower bearing sleeve 3, is a laterally directed stud 6 on which a bevel gear wheel 1 is revolubly mounted. This gear has a suitable handle member 8 fixed thereto whereby it may be rotated for eecting the functional op eration of the beaters. The stud 6 in this instance extends perpendicularly from the sleeve and ythus mounts the gear 'I in a plane that is parallel .to the shaft I.

'.Revolubly mountedon the shaft I, just below thelower end of the bearing Sleeve 3, is a lug or cross head lill, equipped with an upwardly extending hubportion :I I, to which a bevel pinion gear I2 is secured. The pinion `I2 is axially rotatable on shaft wI and is retained in driving mesh with gear 'l by reason of a collar I3 that is formed on shaft I and against which the lower surface of the cross head I0 seats. The shaft I, in turn, is held against longitudinal or downward slippage by reason of a pinion gear I5 that is fixed thereon between the adjacent ends of the bearings 2 and 3, in driving mesh with the gear l. y

Fixed to the lower end portion of shaft I, and extending radially -thereof in opposite directions, are paddles, or vanes, I6 and I6'. Spaced from the vanes I6 and IS', and fixed to the shaft above andv at a right angle thereto, are oppositely directed vanes or paddles I'I and I1'. Each of these several vanes comprises a substantially flat arm or plate that is slightly warped upwardly along its leading edge in a manner whereby, on rotation of the shaft I, they will effect a downward propulsion of the substance being acted on. The lower pair of vanes preferably are shorter than the upper set, as seen in Fig. 3.

Coaxially surrounding the shaft I, slightly above the level of the paddles I'I-I I is a circular disk 2D, formed with four equally spaced slots 2 I, extending from its periphery inwardly and diverging from true radial direction so as to form four symmetrically shaped blades 22, as will be best understood by reference to Fig. 2.

A feature of the construction resides in the fact that the four blades 22 are warped so that, with reference to direction of rotation, their leading edges are higher than the rear edges, thus providing a propeller action that causes a downward propulsion of the material being acted on. Also, the shape of the trailing edge causes the driving of the material toward the central shaft.

The disk 20 is supported by a pair of rods 24 and 24', which extend downwardly from the cross head l0 along opposite sides of and equally spaced from the shaft I, and at their lower ends are xed to oppositely disposed blades 22 of the disk 20. Thus, on rotation of the gear 1, the gear I2 will, through the supporting rods 24 and 24', effect rotation of the disk 20 in one direction, while gear I5 will effect rotation of shaft I and the vanes I6 and I6 and I1 and I1 in the other direction.

By reference to Figs. 1 and 5 in particular, it will be observed that arms 25 and 25' extend downwardly from the peripheral edges of two of the blades 22, at diametrically opposite sides of the disk 20, and these arms have inwardly turned end portions 26 and 26' lying between the planes of the paddles I6 and I 6' and I1 and I1. These arms are at and are slightly warped upwardly in the direction of their leading edges soA that, in use of the device, they will cause a downward propulsion of the substance being acted on. Also, the leading edges of the vertical leg portions 25 and 25 are slightly outwardly warped so that in rotation of the disk they will also cause an inward propulsion of the substance.

-1 The lower end of the shaft I may be pointed or rounded to avoid friction and make easier the j holding of the device in position against a support during use. l

vAssuming the device to be so constructed, it is apparent that, in use, the blades 22 of the disk 2D cause the downward propulsion 'and effective aeration of the substance, and this is further the disk 20 permits easy flow of substance downwardly to the radial beaters.

Devices of this kind maybe made in diii'erent sizes and, for some uses, might be equipped with a driving electric motor for the actuation of the gear 1.

Such devices are especially useful where quick and effective beating of substance is required and an advantage resides in the .ease of cleaning the parts which are all open and spaced so as not to catch and retain any substance.

Having thus described my invention, what I claim as new therein and desire to secure by Letters Patent is- A beater of the character described comprising a central rotatably driven shaft, radially extend- `ing beater vanes fixed to the lower end portion of said shaft in spaced relation therealong, a

' cross head bearing mounted on said central shaft somewhat above the said vanes, to be rotatably driven opposite to the direction of rotation of the shaft, a pair of rods with upper ends fixed in the cross head and depending downwardly therefrom at opposite sides of the main shaft, an annular disk supported from the lower ends of said rods coaxial of the main shaft and above the level of said beater vanes; said disk being slotted from the periphery inwardly and thereby divided into a plurality of impeller blades, similarly warped to effect the downward impelling of material acted on, and beater arms depending down from the peripheral edge of opposite blades and turned inwardly -to operate between the planes of the first mentioned vanes to effect a downwardly impelling action; the opening of the annular disk being of substantial size to accommodate downflow of liquid under the impelling action of the vanes and disk.

ELROY HOMER LEIGI-ITY. 

